* Change in velocity: Acceleration is the rate at which an object's velocity changes. This means that if an object is moving at a constant velocity, it is not accelerating.

* Time: Acceleration is measured over a period of time. The longer the time it takes for a velocity to change, the lower the acceleration.

You can think of it like this:

* Faster the change in velocity: The higher the acceleration.

* Longer the time to change velocity: The lower the acceleration.

Formula:

The formula for acceleration highlights this relationship:

Acceleration (a) = (Change in Velocity (Δv)) / (Time (Δt))